I was in high school and new to weed, couldn’t afford a lot of it so I was trying to maximize efficiency, had the idea that hotboxing in a smaller space would concentrate the smoke making it easier to reinhale more of it, decided to try smoking a bowl with one of those huge yard trash bags draped over me. I managed to get into the bag with my bowl successfully, but I had long hair at the time & when I tried to light the bowl my bangs got in the way and were lit on fire a little, not enough to injure me but more than enough to trap me in a small space with a large amount of burnt hair smoke. In the struggle to escape I spilled the bowl.